Check Valves
Check valves provide simple, passive backflow prevention without requiring manual operation or power sources. The internal moving element automatically opens under forward flow pressure and closes to prevent reverse flow.
Available in multiple designs including swing check, lift check, and ball check configurations, each optimized for specific applications. The choice of design affects pressure drop, response time, and suitability for pulsating flows.
Specifications
- Swing or lift check designs for different flow requirements
- Thread or flange connections for system integration
- Cracking pressure adjustable in some models for performance tuning
- Working pressures up to 600 PSI in standard configurations
Applications
- Pump discharge protection preventing damage from backflow reversal
- Boiler system protection during heating cycle variations
- Treatment chemical injection preventing backflow contamination
- Well pump systems preventing water column collapse
Benefits
- Automatic operation eliminates operator error or maintenance requirements
- Prevents system damage from backflow reversal conditions
- Minimal pressure drop in forward flow direction
- Silent operation with no moving parts exposed to external environment
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